Can someone tell me why Fish & Chips food is so expensive compared to you eat chicken as your meal?

I checked price at Fish & Co and Manhattan Fish Market restaurants; the price of the fish & chips is really expensive.
Same goes with other restaurants that sells Fish & Chips.  

Even when I went to frozen section at grocery stores, I saw some of the frozen fish & chips are quite expensive.

The cheapest fish & chip that I saw usually around RM15-RM18, but most of the time the price would be RM28 and above.

i try this cheap fish and chip one that went viral in kajang, just street store and my god it taste so good and crispy. i think almost 2 year already and still lot of people queuing when i go there. those sos also yummy. way delicious and chipper than manhattan

The fish needs to be flaky but not oily, not dense and dry (which you will get if the wrong type of fish is used).

Manhattan is not bad in terms of quality and price.

i try this cheap fish and chip one that went viral in kajang, just street store and my god it taste so good and crispy. i think almost 2 year already and still lot of people queuing when i go there. those sos also yummy. way delicious and chipper than manhattan

Because those fish are flown from UK - Cod and Haddock.
If you go UK eat fish and chip, it's only 1-2 pounds and they consider as street food.
For local fish, opt for Seabass/Barramundi. That is Ikan Siakap. I find this fish also nice to make fish and chip. They are not as flaky as cod but they offer firm fish texture.

Stop eating fish like me and senile and you will find out why.